In Sullivans Island there are 2 residential Fiber providers covering 100.00% of the city. The average home can get speeds up to 5,000 Mbps. Note that we may have a financial relationship with some of the providers below. This does not influence rankings, and helps us provide high-quality detailed information for free.
This page contains all Fiber internet providers in Sullivans Island, SC.
To see availability maps for all providers including fiber, cable, DSL, and more in Sullivans Island, SC please click below.
Sullivans Island, SC Availability Maps
Fiber Internet Service Providers in Sullivans Island
Data updated 11/14/2025, based on FCC data from 12/31/2024. This is the most current data available as of .
To avoid wasting your time, providers with less than 1% coverage in Sullivans Island are not shown.
Sullivans Island Satellite TV & Internet Providers
DISH Satellite TV
DIRECTV Satellite TV
Not sure whether to choose Dish or DIRECTV? For most people most of the time we recommend DISH. But click here to learn more.
Viasat Satellite Internet
Where in Sullivans Island is fiber internet available?
Fiber Internet Availability Key
Fiber is available in 100.00% of Sullivans Island. Areas in green have fiber internet service, where areas in yellow or red may not. The most widely available provider is AT&T. Call one of the companies with service in Sullivans Island above to see who has service at your home.
How fast is fiber internet in Sullivans Island?
The map below shows maximum fiber internet speeds by area in Sullivans Island.
Fiber Internet Speed Key
The average Sullivans Island home can get up to 5,000 Mbps on their fiber internet plan. The fastest fiber download speed in the city is 5,000 Mbps, which 100.00% of residents can get.
Is fiber the fastest internet I can get in Sullivans Island?
The fastest internet for you may vary based on where in Sullivans Island you live. In general, satellite competes most often with fiber in the city.
- Fiber is the fastest internet type for 100.00% of Sullivans Island homes.
- Cable is fastest for less than 1% of the city.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for less than 1%.
- Satellite internet may be the only option for less than 1% of Sullivans Island homes.
Fiber Providers in Depth
Below you'll find which TV and internet providers offer service in Sullivans Island, along with details on where in Sullivans Island and at what speeds.
EarthLink Fiber in Sullivans Island, SC
EarthLink fiber coverage
About 100.00%, or 2,665 people, have EarthLink fiber internet available to them in the city. The company covers the entire Sullivans Island area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in every corner of Sullivans Island.
EarthLink fiber download speeds
EarthLink is one of the fastest when comparing download speeds to all other internet providers in Sullivans Island. Versus other fiber providers in the area, EarthLink fiber is one of the fastest. There are no different maximum speeds throughout Sullivans Island. The fastest plan anyone in Sullivans Island can order from EarthLink goes up to 5,000 Mbps, and all Sullivans Island customers can get this speed.
Show all download speeds
- 100.0% up to 5,000.0 Mbps
EarthLink fiber upload speeds
In Sullivans Island download speeds tend to be equal to than upload speeds for EarthLink fiber. Compared to other ISPs, EarthLink is one of the fastest where upload speeds are concerned, and one of the fastest compared to other Sullivans Island fiber providers. EarthLink offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Sullivans Island is up to 5,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 5,000.0 Mbps
AT&T Fiber in Sullivans Island, SC
AT&T fiber coverage
About 100.00%, or 2,665 people, have AT&T fiber internet available to them in the city. The company covers the entire Sullivans Island area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in every corner of Sullivans Island.
AT&T fiber download speeds
AT&T is one of the fastest when comparing download speeds to all other internet providers in Sullivans Island. Versus other fiber providers in the area, AT&T fiber is one of the fastest. There are no different maximum speeds throughout Sullivans Island. The fastest plan anyone in Sullivans Island can order from AT&T goes up to 5,000 Mbps, and all Sullivans Island customers can get this speed.
Show all download speeds
- 100.0% up to 5,000.0 Mbps
AT&T fiber upload speeds
In Sullivans Island download speeds tend to be equal to than upload speeds for AT&T fiber. Compared to other ISPs, AT&T is one of the fastest where upload speeds are concerned, and one of the fastest compared to other Sullivans Island fiber providers. AT&T offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Sullivans Island is up to 5,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 5,000.0 Mbps
Sullivans Island Fiber by Area
This information is most helpful to those looking for homes or considering moving to Sullivans Island or any of the areas nearby.
How does fiber internet in Sullivans Island compare to the rest of South Carolina?
Fiber internet speeds in Sullivans Island are much faster versus the average speeds in South Carolina: 0.00 Mbps in South Carolina versus 5,000 Mbps in the city. The state has similar fiber availability compared to the city. Average fiber coverage in South Carolina is 0.00% versus 100.00% in Sullivans Island.
What zip codes have fiber internet?
Fiber internet coverage varies by zip code and neighborhood. Some examples in or around Sullivans Island are shown below. You can enter any zip code here to see TV and internet providers by zip code.
What does fiber internet look like in other cities?
Below are cities nearby and with similar populations. This comparison can be useful if living somewhere with fast internet is important to you.
Nearby Cities
- Isle Of Palms, SC: less fiber coverage, similar speeds
- Mount Pleasant, SC: less fiber coverage, slower speeds
- Charleston, SC: less fiber coverage, slower speeds
- Folly Beach, SC: less fiber coverage, similar speeds
- Johns Island, SC: less fiber coverage, slower speeds
- Charleston Afb, SC: less fiber coverage, slower speeds
- Fenwick Hills, SC: equal fiber coverage, similar speeds
- Legareville, SC: less fiber coverage, slower speeds
- Red Top, SC: less fiber coverage, slower speeds
- Kiawah Island, SC: less fiber coverage, slower speeds
Cities with Similar Populations
- Baird, TX: less fiber coverage, slower speeds
- Lesage, WV: less fiber coverage, slower speeds
- Frederic, WI: less fiber coverage, slower speeds
- East Uniontown, PA: less fiber coverage, faster speeds
- Creola, AL: less fiber coverage, slower speeds
- Carlisle, AR: less fiber coverage, slower speeds
- Belle Plaine, IA: less fiber coverage, slower speeds
- Pine Lawn, MO: less fiber coverage, faster speeds
- Pine Prairie, TX: equal fiber coverage, slower speeds
- Pigeon, MI: less fiber coverage, slower speeds